The mid 1980s were the beginning of the end for distributors in regard to new cars. The Buick Grand Nationals started using coil pack technology while many other GM vehicles were using dual tower coil packs sometimes known as Waste Spark systems. When Ford moved to the 4.6L Modular engine in the ’96 Mustang, there were two coil packs with four towers each set up as a Waste Spark. Other common applications came from Mitsubishi and eventually Chrysler systems. MSD’s DIS Ignition Controls are designed for engines with coil pack, waste spark ignition systems. The DIS-2 has two channels, to fire two coil packs, while the DIS-4 is capable of firing up to four coil packs (or even four individual coils). Each Control delivers full power Capacitive Discharge sparks from idle through racing rpm. Below 3,000 rpm there is a
series of multiple sparks that last for up to 20° of crankshaft rotation to improve idle, starting and throttle response. The adjustable features of the DIS Ignitions have also been upgraded with rotary dials. These provide easier, and more precise adjustments of the over-rev limiter and the hole shot rev limit. Also, there is now a step retard that can be wired directly to a nitrous system or switch for activation! For use on 6 or 8-cylinder engines with two, three or four coil packs.

Features

Two Step Rev Control

Step Retard

LED Monitor

OPERATING SPECIFICATIONS

Spark Energy: 105-115 mJ/spark

Primary Voltage: 460-480 Volts

Secondary Voltage: 40,000 Volts

Spark Series Duration: 20 degree Crankshaft Rotation

RPM Range: 14,000 RPM with 14.4 Volts

Voltage Required: 10-18 Volts, Negative Ground

Current Draw: 6.6 Amps at 10,000 RPM

Manufacturer

MSD

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